Thursday, November 19, 2009

Lightning

Lightning is a discharge of electricity from clouds, accompanied by thunder, which occurs during thunderstorms.

Thunder

Thunder is the sound that is caused by lightning.

Thursday, November 5, 2009

Fog

Fog is a thick cloud that contains very small water droplets suspended in the atmosphere at or near the ground. Fog reduces visibility.

Drizzle

Drizzle is rain that has smaller water droplets.

Freezing drizzle

Freezing drizzle is drizzle that falls as liquid then freezes upon hitting the ground.

Supercooling

Supercooling means to cool a liquid below its normal freezing point without becoming a solid.

Freezing rain

Freezing rain is rain that falls as liquid then freezes upon hitting the ground.

Hail

Hail is precipitation that falls as irregular balls of ice.